While bantering bunkmates Lister (Craig Charles) and Rimmer (Chris Barrie) bicker over a game of Mineopoly, Kryten (Robert Llewellyn) and Cat (Danny John-Jules) bring a drifting escape pod on board for analysis. Intrigued by the craft’s origins, the boys from the Dwarf investigate the SS Samsara’s mothership, which crashed into an ocean moon 3 million years ago. Finding themselves divided into pairs, they must solve the mystery of what wiped out the eviscerated crew before they drive each other insane.